Inventor · disambiguated record
Tak W. Leung
Also filed as: LEUNG TAK W · LEUNG TAK WAI
37 granted patents·6 pending applications·742 citations·filing 1988–2021
98Inventor score
Files withCHEN LINFENG14UNION CARBIDE CHEM PLASTIC10DOW GLOBAL TECHNOLOGIES LLC4GRACE W R & CO4W R GRACE & CO —CONN4
Top patents by PatentIndex Score
43 records- 0198US8536372B2Procatalyst composition with substituted 1,2-phenylene aromatic diester internal donor and methodDOW GLOBAL TECHNOLOGIES LLC·Filed 2012·Granted Sep 17, 2013·22 cites·20 claims
- 0298US5288918AHydroformylation processUNION CARBIDE CHEM PLASTIC·Filed 1992·Granted Feb 22, 1994·209 cites·20 claims
- 0397US8288304B2Procatalyst composition with adamantane and methodCHEN LINFENG·Filed 2010·Granted Oct 16, 2012·27 cites·20 claims
- 0497US8288585B2Procatalyst composition with substitute 1,2-phenylene aromatic diester internal donor and methodCHEN LINFENG·Filed 2009·Granted Oct 16, 2012·32 cites·6 claims
- 0595US8536290B2Procatalyst composition with alkoxyalkyl 2-propenoate internal electron donor and polymer from sameCHEN LINFENG·Filed 2010·Granted Sep 17, 2013·16 cites·8 claims
- 0695US8383540B2Catalyst composition with halo-malonate internal electron donor and polymer from sameDOW GLOBAL TECHNOLOGIES LLC·Filed 2010·Granted Feb 26, 2013·13 cites·12 claims
- 0795US8263520B2Two atom bridged dicarbonate compounds as internal donors in catalysts for polypropylene manufactureCOALTER III JOSEPH N·Filed 2010·Granted Sep 11, 2012·24 cites·14 claims
- 0893US8088872B2Procatalyst composition including silyl ester internal donor and methodCHEN LINFENG·Filed 2009·Granted Jan 3, 2012·17 cites·16 claims
- 0992US8633126B2Three and four atom bridged dicarbonate compounds as internal donors in catalysts for polypropylene manufactureCOALTER III JOSEPH N·Filed 2010·Granted Jan 21, 2014·14 cites·18 claims
- 1091US11254756B2Process for production of high melt flow propylene-based polymer and product from sameW R GRACE & CO —CONN·Filed 2019·Granted Feb 22, 2022·2 cites·12 claims
- 1191US10358505B2Process for production of high melt flow propylene-based polymer and product from sameCHEN LINFENG·Filed 2011·Granted Jul 23, 2019·8 cites·12 claims
- 1291US8604235B2Production of substituted phenylene aromatic diesters and compositionsCHEN LINFENG·Filed 2009·Granted Dec 10, 2013·10 cites·6 claims
- 1391US5741944AHydroformaylation processesUNION CARBIDE CHEM PLASTIC·Filed 1996·Granted Apr 21, 1998·58 cites·20 claims
- 1490US9534063B2Procatalyst composition with substituted 1,2-phenylene aromatic diester internal donor and methodW R GRACE & CO —CONN·Filed 2016·Granted Jan 3, 2017·2 cites·19 claims
- 1590US9434799B2Procatalyst composition with substituted 1,2-phenylene aromatic diester internal donor and methodW R GRACE & CO -CONN·Filed 2015·Granted Sep 6, 2016·2 cites·20 claims
- 1690US8247341B2Procatalyst composition with silyl glutarate and methodGONZALEZ KELLY A·Filed 2010·Granted Aug 21, 2012·15 cites·20 claims
- 1790US5731472AMetal-ligand complex catalyzed processesUNION CARBIDE CHEM PLASTIC·Filed 1996·Granted Mar 24, 1998·57 cites·19 claims
- 1889US8378045B2Thermoformed article with high stiffness and good opticsDOW GLOBAL TECHNOLOGIES LLC·Filed 2010·Granted Feb 19, 2013·6 cites·20 claims
- 1989US5741945AProcesses employing indicator ligandsUNION CARBIDE CHEM PLASTIC·Filed 1996·Granted Apr 21, 1998·47 cites·17 claims
- 2088US5194660AProcesses for producing carbamates and isocyanatesUNION CARBIDE CHEM PLASTIC·Filed 1990·Granted Mar 16, 1993·31 cites·7 claims
- 2187US5741942AMetal-ligand complex catalyzed processesUNION CARBIDE CHEM PLASTIC·Filed 1996·Granted Apr 21, 1998·40 cites·20 claims
- 2286US9045570B2Procatalyst composition with substituted 1,2-phenylene aromatic diester internal donor and methodGRACE W R & CO·Filed 2013·Granted Jun 2, 2015·3 cites·14 claims
- 2382US11993672B2Production of high melt flow propylene-based polymer and product from sameGRACE W R & CO·Filed 2021·Granted May 28, 2024·0 cites·14 claims
- 2482US8507717B2Production of substituted phenylene aromatic diestersLEUNG TAK W·Filed 2009·Granted Aug 13, 2013·3 cites·19 claims
- 2579US5874640AMetal-ligand complex catalyzed processesUNION CARBIDE CHEM PLASTIC·Filed 1997·Granted Feb 23, 1999·53 cites·20 claims
- 2677US9382342B2Procatalyst composition with alkoxyalkyl 2-propenoate internal electron donor and polymer from sameCHEN LINFENG·Filed 2011·Granted Jul 5, 2016·2 cites·13 claims
- 2777US8604144B2Procatalyst composition with substituted amide ester internal electron donorCHEN LINFENG·Filed 2011·Granted Dec 10, 2013·2 cites·13 claims
- 2875US9382343B2Procatalyst composition with alkoxypropyl ester internal electron donor and polymer from sameCHEN LINFENG·Filed 2011·Granted Jul 5, 2016·2 cites·12 claims
- 2973US4935547AHomologation process making higher alcoholsUNION CARBIDE CHEM PLASTIC·Filed 1988·Granted Jun 19, 1990·11 cites·7 claims
- 3071US9315592B2Process for producing procatalyst composition with alkoxyalkyl ester internal electron donor and productGRACE W R & CO·Filed 2013·Granted Apr 19, 2016·1 cites·25 claims
- 3168US9441058B2Procatalyst composition with substituted amide ester internal electron donorW R GRACE & CO —CONN·Filed 2013·Granted Sep 13, 2016·1 cites·15 claims
- 3260US5741943AHydroformylation processes employing indicator ligandsUNION CARBIDE CHEM PLASTIC·Filed 1996·Granted Apr 21, 1998·10 cites·17 claims
- 3359US8697827B2Catalyst composition with halo-malonate internal electron donor and polymer from sameDOW GLOBAL TECHNOLOGIES LLC·Filed 2013·Granted Apr 15, 2014·0 cites·20 claims
- 3454US2015344597A1Production of substituted phenylene dibenzoate internal electron donor and procatalyst with sameGRACE W R & CO·Filed 2015·Application pending·0 cites
- 3552US2013245306A1Two atom bridged dicarbonate compounds as internal donors in catalysts for polypropylene manufactureCOALTER III JOSEPH N·Filed 2012·Application pending·0 cites
- 3650US2012157295A1Process for Producing Procatalyst Composition with Alkoxyalkyl Ester Internal Electron Donor and ProductCHEN LINFENG·Filed 2010·Application pending·0 cites
- 3748US9133286B2Production of substituted phenylene dibenzoate internal electron donor and procatalyst with sameGULLO MICHAEL F·Filed 2011·Granted Sep 15, 2015·0 cites·13 claims
- 3847US8466081B2Halogenated amide ester and internal electron donor with sameCHEN LINFENG·Filed 2011·Granted Jun 18, 2013·0 cites·14 claims
- 3945US8551903B2Amide ester internal electron donor and processCHEN LINFENG·Filed 2011·Granted Oct 8, 2013·0 cites·5 claims
- 4042US5179223AProcess for producing carbamates from oximesUNION CARBIDE CHEM PLASTIC·Filed 1990·Granted Jan 12, 1993·2 cites·25 claims
- 4142US2014012035A1Production of Substituted Phenylene Aromatic DiestersCHEN LINFENG·Filed 2012·Application pending·0 cites
- 4239US2012157645A1Procatalyst Composition with Alkoxypropyl Ester Internal Electron Donor and Polymer From SameCHEN LINFENG·Filed 2010·Application pending·0 cites
- 4336US2007191558A1Olefin polymerization procatalyst compositions and method of preparationGONZALEZ KELLY A·Filed 2005·Application pending·0 cites
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